874334189 has 2 divisors, whose sum is σ = 874334190. Its totient is φ = 874334188.

The previous prime is 874334171. The next prime is 874334203. The reversal of 874334189 is 981433478.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 438902500 + 435431689 = 20950^2 + 20867^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-874334189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (874334689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 437167094 + 437167095.

It is an arithmetic number, because the mean of its divisors is an integer number (437167095).

Almost surely, 2^874334189 is an apocalyptic number.

It is an amenable number.

874334189 is a deficient number, since it is larger than the sum of its proper divisors (1).

874334189 is an equidigital number, since it uses as much as digits as its factorization.

874334189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 47.

The square root of 874334189 is about 29569.1425137761. The cubic root of 874334189 is about 956.2229297077. Note that the first 3 decimals are identical.

The spelling of 874334189 in words is "eight hundred seventy-four million, three hundred thirty-four thousand, one hundred eighty-nine".